byku[10], kuby[10], beku[9], ubek[9], buks[9], skub[9], busy[9], kusy[8], skuy[8], syku[8], beks[7], kuse[7],
buk[8], kub[8], bus[7], byk[7], kyu[7], bek[6], suk[6], esu[5], syk[5], eks[4], esy[4],
bu[6], ku[5], by[5], be[4], su[4], es[2], se[2],
